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S949TR Schematic ( PDF Datasheet ) - Vishay Telefunken

Teilenummer S949TR
Beschreibung MOSMIC for TV-Tuner Prestage with 9 V Supply Voltage
Hersteller Vishay Telefunken
Logo Vishay Telefunken Logo 




Gesamt 9 Seiten
S949TR Datasheet, Funktion
S949T/S949TR/S949TRW
Vishay Telefunken
MOSMIC® for TV–Tuner Prestage with 9 V Supply
Voltage
MOSMIC - MOS Monolithic Integrated Circuit
Electrostatic sensitive device.
Observe precautions for handling.
Applications
Low noise gain controlled input stages in UHF-and
VHF- tuner with 9 V supply voltage.
Features
D Integrated gate protection diodes
D Low noise figure
D High gain
D Biasing network on chip
C block
AGC
G2
RF in
G1
C block
RFC
D
S C block
VDD
RF out
94 9296
D Improved cross modulation at gain reduction
D High AGC-range
D SMD package
21
12
94 9279
13 579
34
S949T Marking: 949
Plastic case (SOT 143)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
12
94 9278
43
95 10831
S949TR Marking: 99R
Plastic case (SOT 143R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
13 654
13 566
43
S949TRW Marking: W99
Plastic case (SOT 343R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
Document Number 85061
Rev. 3, 20-Jan-99
www.vishay.de FaxBack +1-408-970-5600
1 (9)






S949TR Datasheet, Funktion
S949T/S949TR/S949TRW
Vishay Telefunken
WVDS = 9 V, VG2S = 4 V , Z0 = 50
S11
j0.5
j
j2
j0.2 j5
0 ÁÁÁÁ0.2ÁÁÁÁ0.5 ÁÁÁÁ1 ÁÁÁÁ2 ÁÁ5ÁÁ50 1
–j0.2
–j0.5
300 –j5
1300MHz
550
1050 800 –j2
12 932
–j
S21
Figure 9. Input reflection coefficient
120°
550
300
90°
800
1050
60°
30°
1300MHz
50
180° 1.0 2.0 0°
–150°
–30°
12 934
–120°
–60°
–90°
Figure 10. Forward transmission coefficient
S12
90°
120°
60°
150°
1300MHz 1050
180°
30°
550
50 0.008 0.016 0°
–150°
–30°
12 933
–120°
–60°
–90°
Figure 11. Reverse transmission coefficient
S22
j
j0.5 j2
j0.2 j5
ÁÁÁÁÁÁÁÁÁ 10 0.2 0.5 1 2 5 50
ÁÁÁÁÁÁÁÁÁ300
–j0.2
800 –j5
–j0.5
1300MHz
–j2
12 935
–j
Figure 12. Output reflection coefficient
www.vishay.de FaxBack +1-408-970-5600
6 (9)
Document Number 85061
Rev. 3, 20-Jan-99

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